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Bug 2123277

Summary: Reading of PHC fails and phc2sys exits [rhel-8.6.0.z]
Product: Red Hat Enterprise Linux 8 Reporter: RHEL Program Management Team <pgm-rhel-tools>
Component: linuxptpAssignee: Miroslav Lichvar <mlichvar>
Status: CLOSED ERRATA QA Contact: Yalin.Li <yalli>
Severity: medium Docs Contact:
Priority: urgent    
Version: 8.4CC: dcain, fkrska, mlichvar, psklenar, pvaanane, yalli
Target Milestone: rcKeywords: Triaged, ZStream
Target Release: ---Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: linuxptp-3.1.1-2.el8_6.1 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 2079129 Environment:
Last Closed: 2022-10-25 09:32:36 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2079129    
Bug Blocks:    

Comment 1 Yalin.Li 2022-09-07 07:28:38 UTC 
phc2sys doesn't end after "device or resource busy" error happened. Marked as Tested.
# uname -r
4.18.0-372.26.1.el8_6.x86_64
# rpm -q linuxptp
linuxptp-3.1.1-2.el8_6.1.x86_64
# tail ptp4l.log
ptp4l[11599.278]: master offset          7 s2 freq     +50 path delay       321
ptp4l[11599.340]: master offset          4 s2 freq     +46 path delay       322
ptp4l[11599.402]: master offset          9 s2 freq     +55 path delay       322
ptp4l[11599.464]: master offset         -7 s2 freq     +28 path delay       322
ptp4l[11599.527]: master offset         -3 s2 freq     +35 path delay       322
ptp4l[11599.589]: master offset        -11 s2 freq     +21 path delay       322
ptp4l[11599.664]: master offset          7 s2 freq     +50 path delay       321
ptp4l[11599.729]: master offset        -14 s2 freq     +15 path delay       321
ptp4l[11599.787]: master offset         -7 s2 freq     +26 path delay       320
ptp4l[11599.850]: master offset         -2 s2 freq     +34 path delay       320
# tail phc2sys.log 
phc2sys[11416.233]: CLOCK_REALTIME phc offset         1 s2 freq  -82523 delay    605
phc2sys[11416.296]: CLOCK_REALTIME phc offset       -16 s2 freq  -82540 delay    605
phc2sys[11416.358]: CLOCK_REALTIME phc offset        -2 s2 freq  -82531 delay    554
phc2sys[11416.421]: CLOCK_REALTIME phc offset       -10 s2 freq  -82540 delay    561
phc2sys[11416.484]: CLOCK_REALTIME phc offset        -8 s2 freq  -82541 delay    555
phc2sys[11416.546]: CLOCK_REALTIME phc offset        -9 s2 freq  -82544 delay    559
phc2sys[11416.609]: CLOCK_REALTIME phc offset        -1 s2 freq  -82539 delay    601
phc2sys[11416.672]: CLOCK_REALTIME phc offset        -4 s2 freq  -82542 delay    610
phc2sys[11416.734]: CLOCK_REALTIME phc offset       -12 s2 freq  -82551 delay    559
# grep busy phc2sys
phc2sys[11040.778]: ioctl PTP_SYS_OFFSET_EXTENDED: Device or resource busy
phc2sys[11178.129]: ioctl PTP_SYS_OFFSET_EXTENDED: Device or resource busy
phc2sys[11185.632]: ioctl PTP_SYS_OFFSET_EXTENDED: Device or resource busy
phc2sys[11230.949]: ioctl PTP_SYS_OFFSET_EXTENDED: Device or resource busy
Comment 4 Yalin.Li 2022-09-14 03:54:15 UTC 
Verified in comment 1. Mark as verified.
Comment 10 errata-xmlrpc 2022-10-25 09:32:36 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (linuxptp bug fix update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:7121